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DS1990R, DS1990R-F3, DS1990R-F5
Serial Number iButton
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Status
Description
The DS1990R Serial Number iButton® is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS1990R is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel iButton package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the DS1990R to be used easily by human operators. Accessories permit the DS1990R iButton to be mounted on almost any object, including containers, pallets, and bags. The DS1990R is a fully compatible variant of the
DS1990A. In applications where a presence pulse on contact is critical the DS1990R should be preferred over the DS1990A.
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Data Sheet
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Key Features
- Unique Factory-Lasered 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
- Built-In Multidrop Controller for 1-Wire Net
- Digital Identification by Momentary Contact
- Data Can Be Accessed While Affixed to Object
- Economically Communicates to Bus Master with a Single Digital Signal at 16.3kbps
- Button Shape is Self-Aligning with Cup-Shaped Probes
- Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environments
- Easily Affixed with Self-Stick Adhesive Backing, Latched by its Flange, or Locked with a Ring Pressed Onto its Rim
- Presence Detector Acknowledges When Reader First Applies Voltage
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Applications/Uses
- Access Control
- Inventory Control
- Tool Management
- Work-in-Progress Tracking
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Key Specifications:
| iButton Products |
| Part Number |
Applications |
Memory Type |
Memory Size |
Unique Ware |
Real Time Clock |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS1990R |
| Electronic Access Control | | Guard Tour |
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ROM Only |
64 bits |
No |
No |
301 |
$1.25 @1k |
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See All iButton Products (26)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Application Notes
Reliability Reports
| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| DS1990R-F3
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N/A |
No Longer Available |
DS1990R-F3#
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CAN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| DS1990R-F3#
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Active |
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CAN-F3;2 pin;301 mm²
Outline Drawing:21-0252 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: IB#3NB*
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-40°C to +85°C
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RoHS/Lead-Free: RoHS Qualified
Materials Analysis |
| DS1990R-F3+
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N/A |
No Longer Available |
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CAN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| DS1990R-F5
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N/A |
No Longer Available |
DS1990R-F5#
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CAN;2 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| DS1990R-F5#
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Active |
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CAN-F5;2 pin;301 mm²
Outline Drawing:21-0266 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: IB#5NB*
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-40°C to +85°C
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RoHS/Lead-Free: RoHS Qualified
Materials Analysis |
| DS1990R-F5+W
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N/A |
No Longer Available |
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CAN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-4894
Rev 4;
2010-09-07
This page last modified: 2010-12-08
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